<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <!-- 跳转到百度，搜索框的内容是输入的内容 -->
    <script>
      window.location.href = 'https://www.baidu.com/s?wd=' + encodeURIComponent('输入的内容')
    </script>
  </body>
</html>
